Logging apparatus.



' PATENTED JAN. 3l, 1905.

No. 781,096. R

' H. R. ROBERTSON.

LOGGING APPARATUS. APPLIGATION'FILEDQ'UNE 20,-1904.

HUNITED STATES Patented January 31, 1905.

PATENT OFFICE.

HUGH VRODERIOK ROBERTSON, PORTLAND, OREGON.

LOGGING APPARATUS.

SECIFICATION forming' part of Letters Patent No. r781,096, dated January 31, 1905.

Application nettime 20,1904. serai No. 213,238.

T0 a/ZZ whom, it may concern: l

Be it known that I, HUGH RoDERIcK Ron- ER'rsoN, a citizen of the Dominion of Canada, residing at Portland, Multnomah county,State of Oregon, have invented certain new and useful Improvements in Logging Apparatus;V and kI do hereby declare the following to be a full,

clear, and exact description of the same.

My invention relates to that class of apparatus for handling and carrying' logs from where they lie when cut to a common spot of departure for transportation to their destination. i

-My invention is especially applicable to and is an improvement upon that class of apparatus employing a traveling line and a trip or haul-back line, which in the usual type extend directly out from their winding-drums to the log. Much difficult y is experienced, especially when working with very large logs or sticks or in. an area covered with debris or havingmany stumps, in hauling the logs thus I directly, because of the stumps, the inequalities of the ground, other logs and obstructions of every kind, because the advancing end or 5 point ofthe log or tree being hauled cannot avoid such obstructions. Especially is this the case where operations are being cond ucted to haul logs from a hillside and across valleys, for in such ease the lay of the land and the direct and low course of the lines render it certain that the advancing end of the log or tree will be low down and will meet every possible obstruction. It is not always practicable from the standpoint of expense and from other considerations to employ an overhead wire system, and it happens, therefore, that be- To this end my invention consists in the combination of parts, which I shall hereinafter fully describe. l Referring to the accompanying drawing,

the ligure is a perspective view of my logging apparatus a sz'zm.

At a suitable point at the base of a hillside I 'set up and suitably guya high mast B, and

in its VicinityI place the engine A, which hasl a trip-line drum a and a hauling-line drum a'. 55

O is the tripor haul-back line. It extends from drum a up to and over a block c, hung from the masthead, and-thence to a guidingpoint to carry it well out of the way of the hauling-line-say to a block c', secured to a 60 stump or tree off to one side-and thence said line extends tothe terminal or head-block c2,

secured high up on a tree on the hillside.

Fromr this head-block the trip-line extends back to the butt-hook Dof the hauling-line E. The hauling-line extends from the drum d up to a block e at the masthead and thence down to the butt-hook D. f

The log or whole treeE is represented as I With a choker-strap f, se-

of what I may term the high-line7 pull, due 75 to the mast B, the point of the log or tree inc stead of being, as usual, depressed is lifted and is thusvenabled to clear all obstructions. It will thus travel without any difliculty, its

advancing end clearing every obstruction, no 8O matter of what character, and vits'butt-end dragging onl the ground and riding over obstructions. By simply changing the headblock c2 the apparatus be swung around to work throughout the whole circle, if necessary. y

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. Aloggingapparatus comprisingamast, 'a hauling-line guided by the masthead and thence extending unguided to the log, said line havingalogengaging means onits extremity,a

f separate trip or haul-back line suitably guided and having its extremity secured to the 10gengaging means of the hauling-line and separate Winding-drums for operating said lines.

IO tremity, a separate trip or haul-back line,

also guided by the masthead and having its extremity secured to the 10g-engaging means of the haulingline, and separate \\'inding drums for operating said lines.

In witness whereof I have hereunto set nly hand.

HUGH RODERIUK HOBHIK'ISON. Witnesses:

VALTER F. VANE, D. B. RICHARDs. 

